Detailed Product Description 1. Raw material: Borosilicate glass, Pyrex, Optical glass. Crystal glass 2. Processing: by Molding, Grinding, Polishing3. Surface quality: optical surface ... , Spherical lens, Optical lens, Aspheric lens, Meniscus lens,optical lens,glass lens,magnifying lens6. Application: Lighting system, Electronics, Electrical apparatus, Industries, e ...